Applying apparatus



Feb. 19 1924.

J. w. COSGROVE APPLYING APPARATUS 3 Sheets-Sheet 1 Filed March 4, 1920 5 Sheos-Sheet 2 //v vs/v ma.

J. W. COSGROVE APPLYING APPARATUS Filed March 4, l920 Feb. 19 1924.

Feb. 19, 1924. 1,483,967

' J. W. COSGROVE APPLYING APPARATUS Filed March 4, 1920 s Sheets-Sheet 5 Patented Feb. 19, 1924.

UNITED STATES PATENT OFFICE.

Joan w. COSGROVE, or mnnronn, MASSACHUSETTS, nssmnon TO UNITED snon ma- GHINERY CORPORATION, OF PATEBSON, NEW JERSEY,

JERSEY.

A CORPORATION OF NEW APPLYING APPARATUS.

Application filed March 4, 1920. Serial No. 868,297.

To all whom it may concern:

Be it known that I, Join: W. Coscnovn, a citizen of the United States, residing at Medford, in the county of Middlesex and.

6 State of Massachusetts, have invented certain Improvements in Applying Apparatus, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on 10 the drawings indicating like parts in the several figures.

My invention relates to apparatus for applying to various materials such, substances as liquids, an instance of this class i of apparatus being'found in those employed for wetting soles of shoes prior to their channeling and the turning of the channel flaps. In this wetting apparatus itis desirable that the water or other liquid shall thoroughly penetrate the soles. This, however, is a matter of much difiiculty, since modern tanning processes make the leather of which the soles are formed repellant of moisture, and also because of the presence of such material as chalk upon the surfaces, which tends to prevent the absorption of the liquidI Objects of this invention are to provide a simple and easily operated apparatus, by which soles and the like may be effectively treated over unbroken surfaces, as by having applied to them a liquid which is caused to enter their pores.

In the accomplishment of these objects, as a feature of my invention, I combine with means for advancing the work to be operated upon, an applying member having a surface arranged to roughen the surface of the work and movable in its contact with said work in a direction opposite to the advance. This causes the surface under treatment to be wiped clean by the applying member, and the fibers of the material to be separated or displaced to increase the absorptive effect. Preferably, the applying member consists of a roll operating in a receptacle containing the substance with which the work is to be treated, this roll having projecting portions contacting with the work and .so rotating with respect to the advance of said work that it travels in the opposite direction at its points of contact therewith. This 5 front of the work after it haS been rubbed by the applying surface, a body of the substance to be applied, which is thus enabled to enter the work thoroughly.

paratus operates upon the work, I may so arrange t that it simultaneously acts upon a plurality of. pieces, and, in" this connection, a further feature of the invention lies in plural means situated on one side of the applying member, each 'means comprising co-operatlng advancing surfaces and each means acting independently of the as soclated means for independently effecting the feed of the pieces. In the present embodiment of the invention, the roll or other applylng member is so elongated that plural work pieces may be acted upon at one time, and along this applying roll are plural feedmg members, which will exert their influence independently. They are preferably 1n the form of pressure-rolls, mounted for independent movement, and are thus' To increase the rate at which the apof the work during the entire time which the applying member acts upon it, I have provided feeding means at each side of the applying member, the forward of which causes the movement of the work after it has passed out of engagement with the rear feeding means. To bring about the independent control of theseparate workpieces ust discussed, the feeding means consists of op posite series of rolls arranged in alined pairs.

The applying member of this invention is shown as in the form of a roll having depressions to convey to the work the substance to be applied and to rub this in by the differential movement. To prevent the dividing walls between the depressions from interfering with the application, as by causing, through continuous contact with the same portion ofthe work, dry areas thereon, another feature of the invention consists in arranging the adjacent depressions, considered circumferentially of the roll, between different transverse planes. The dividing walls will consequently not be alined, and the area shielded from the wetting effect by the walls of one depression will be acted upon by a succeeding depression. Moreover, the surface of the work will be continuously fer to supply it from an elevated reservoir roughened by theaction of the walls. In the preferred form of the a tion 1 ustrated, furnished by a helical rib with intersecting longitudinal ribs.

The accompanying drawings show a par-1 ticular embodiment of the invention adapted for the wetting of soles,

Fig. 1 being an end elevatlon of the apparatus;

Fig. 2, a vertical section on the line 2-2 of F1 1' Fi 3, an enlarged horizontal section on the lme 3-3 of Fig. 1; and

-'Fig. 4, an enlarged sectional detail, illustrating the co-o eration of the work w th the applying rol and the substance which it dellvers.

Upon a Suitable standard 10 1s supported a base frame 12, from the rear of which project horizontal arms 14, 14, carrying a work-- receiving table 16. Just in front of this table, the frame 12 has fixed upon 1t a tank or receptacle 18 for water or other substance to be applied, this tank having an inclined bottom wall 20 leading downwardly fromthe forward extremity of the tank to the rear, and having near the latter side a drainpipe 22, controlled by a cock 24. Through this pipe the liquid, with the accumulated waste and foreigmmatter from the work, may be removed when desired. To maintair a constant level of liquid in the tank, I pre- 26, carried upon an arm 28 projecting from the side ofthe frame 12, and curved over the'tank. From the bottom of this reservoir leads a pipe 30, the lower end of which terminates at the level in the tank at which it is' desired to kee the surface of the contained liquid. T e reservoir and this connecting pipe are arranged to provide a barometric feed, flow occurring only when and as soon as the height of theliquid in the tank falls below the delivering extreme ity of the pipe 30. The reservoir may-be filled through a pipe 32 entering its side, this pipe being normall closed by a cook 34. To allow the liqui to be introduced, the reservoir may be vented at the top through an air-cock 36. emptying the tank 20, flow through the pipe 30 may be stopped by closing a cock 3: therein. This is alsoshut during the filling of the reservoir.

In the side walls of the tank 20 is journaled an applying roll 4;0,th e upper peripheral portion of which projects above thetop of the tank, while the roll, generally, is'so related to the end of the pipe 30 that a contained liquid. This roll 40 is rotated at the desired. speed by 'a belt. 42, connecting stepped pulleys 44 and 46- upon the .roll.

aratus, the. depressions are arranged he ically' about the aplplying roll, being, 1n the organiza- At the time of masses shaft and a driving shaft 48, respectively. The driving shaft is mounted to turn in a bracket 49 bolted to the side of the base frame, and is rotated by a belt 50, joining a source of power to fast and, loose pulle s 52 upon the driving shaft. To enable t e applying roll 40 to effectively bring up from the tank 20 the contained liquid and appl it to the work, said roll is formed wita closely placed pockets or depressions 54, these, in the present instance, lying between side walls 56, 56, which extend in a gener-- ally circumferential direction about the roll,

lie between different planes intersecting the roll transversely. Preferably, they are arranged helically, the rib forming the walls 56 being furnished by a continuous -helix.' As a convenient manner of constructing the *depressionsthus arranged, this helical wall may be integral with the body of the roll, while the walls 58 consist of ribs or bars set in slots cut through the convolutions of the helix.. As a result of this, there is a progressive lateral displacement of the circumferential depressions, and similarly of their end walls 58, so that an area, which may be left dry under the walls when one depression passes over the work, will be moistened by a sucgeeding depression which is out of alinement with those preceding it.

The work is fed across the upper surface of the applying roll, preferably at a rather slow speed as compared with the rotation of the roll and in a direction opposite to such rotation, by a roll 60 journaled in the tank walls parallel to the applying roll, and

driven oppositely thereto in a chain of gear- .ing 62 connecting the fee -roll 60 with the gagement for advancing the work, and to render it effective in its feeding action, there co-operates with it a pressure means mounted near the top of, the tank. I have shown this pressure means as consisting of rolls 64, each of which is of such length that it will contact across the entire width of the largest sole to be fed. The pressurerolls areyieldably mounted, in a manner now to be described, and, because of their independence, permit the application of the .correct feeding pressure to all the work simultaneously acted upon by the appl ing roll, regardless of-the thickness of t e pieces. -Extnding across the top of the tank above the applying roll is a rod or likesupporting bar 66, fixed in brackets or extensions 68, 68 from the side walls of the tanks. Uniformly spaced along this rod are blocks 70, each of which appears as divided at one side and clamped in place upon the rod by a screw 72 drawing the parts toward one another. Each block has rearwardly and downwardly extending arms 74, 74, upon which is pivoted at 76 a carrier 78 for one of the rolls 64. Projecting upwardly from each block, and being, as illustrated, formed integrally therewith, is a casing 80 containing a spring 82, which, exerting its force upon the plvoted carrier, presses the corresponding feed-roll 64 toward the feed-roll 60. Threaded through the upper extremity of each casing is a screw 84, by which different degrees of compression may be applied to the spring 82, and thus the force with which the work is engaged between the feed-rolls varied. To limit the downward movement of each upper feed-roll, and thus hold it normally out of contact with the lower, a screw 86 is threaded through a portion of the carrier 78, contacting with the wall of the casing 80. Changes may be made in the position of this screw to alter -the separation between the rolls. I prefer to so locate these feed-rolls and 64 that their bite is somewhat below the applying surface of the roll 40, causing them to hold the work with some force against said surface. To increase this action, and also to give a greater area of contact between the work and the applying roll, spring fingers 88 are located above the roll, these preferably being curved so that their contour is generally similar to that of'the adjacent portion of the roll periphery, thereby increasing the length of the sole which is held under treatment upon the applying roll. As shown herein, these fingers 88 are divided from a plate 90 of spning metal, this plate being fixed at the lower extremities of arms 92, which are respectively secured at 94 to the rod 66. The position of the arms 92 may be maintained by setscrews 95, and by loosening these the angular relation of the arms to the rod, and

therefore of the fingers 88 to the roll, may be changed to vary the pressure of said fingers upon the work. a

The feeding action of the rolls 60 and 64 is continued by similar lower and upper rolls 96 and 98, respectively, lying at the opposite side of the applying roll from' the rolls first mentioned, and. at a somewhat higher level to bring the. work passing through them clear of the top of the tank. The lower roll 96 is journaled in the tank walls, is continuous throughout its length and grooved to better engage the work similarly to the roll 60, and is driven by a belt 100 engaging pulleys 102 and 104, respectively, secured upon the shafts of the rolls 60 and 96. The upper rolls 98 are divided, as are the rolls 64, each section being mounted upon a carrier arm 106, bifurcated and turning about the rod 66 at the opposite sides of a block 70. Situated between each carrier arm 106 and an arm 108 projecting upwardly from the associated block, is a spring 110, surrounding a bolt 112, which passes through openings in the arms. This spring applies to its roll 98 the feeding pressure, the extent of.downward movement 'under the influence of the spring being limited by a nut 114 upon one end of the bolt. The effective spring tension may be altered by the substitution of springs of different lengths.

I have found that the work more effectively absorbs the liquid if this be heated,

'and to this end there is shown, projecting inwardly from an end wall of the tank, a cylindrical casing 116, within which is contained a source of heat, as an electric unit 118. To this unit current may be supplied through conductors 120. The casing, being entirely surrounded by the liquid, transmits the heat .of the contained unit practically without loss, and the whole body in the tank is warmed to a temperature which produces its most ready absorption by the work.

In using the apparatus for the tempering of shoe soles, the operator takes them from a stock supported upon the table 16, and advances them over a cover-plate 122 extending across the rear of the tank 20 so that they enter bet een the feed-rolls 60 and 64 at all the feeding sections. I have shown upon this cover vertical partitions 124, dividing it into sections corresponding in number to the rolls 64, this arrangement insuring the proper presentation of the work to the feeding sections. Upon engagement by the feed rolls, the work is advanced across the top of the applying roll beneath the fingers 88, which bend it down into contact with the applying surface. This, traveling toward the feed-rolls in the opposite direction to the ad- Vance of the work pieces, drags the walls separating the roll-depressions across the surfaces to be treated, scraping otf foreign substances and roughening the fibers of the material. As a result, the pores of the material are freed and opened, so that the liq-.

uid in the depressions readily enters the work. Then, as each sole passes beyond the contacting surface of the applying roll, it comes under the influence of the bodyof liquid appearing at L in Fig. 4 of the drawings, which has been raised from the tank in excess of that which is carried beneath the work by the roll depressions, and absorbs an additional quantity therefrom, the sole surfaces, by their'roughening and preliminary vancing the work, and an applying member movable in contact with the Work in a direction opposite to its advance, said applying member being provided with a surface formed and arranged to roughen'the oppositely moving face of the work.

2. In an applying apparatus, means for advancing the work, and a rotatable apply ing roll having projecting portions contact-' ing with the work and moving at the points of contact in the opposite direction to the advance. I

3. In an applying apparatus, a receptacle for the substance to be applied, an ap lying roll rotatable in the receptacle, airs 0 feeding rolls situated at opposite si es of the applying roll, each pair of rolls being arranged to successively move the work'over the applying roll in a direction opposite to the travel of that portion of the applying roll contacting with said work and to positively hold it to receive the rubbing action of said applying roll.

. 4. In an applying apparatus, means for advancing the work, an applyin member movable in contact with the work 1n a direction opposite to its advance, and means extending about and corresponding in contour to the applying member for forcing the work into engagement with said applying member.

5. In an applying apparatus, means for advancing the work, a rotatable applying roll contacting with the work and moving at the points of contact in the opposite direction to the advance, and a spring member cooperating with the work opposite the roll and having a portion substantially concentric to said roll.

6. In an applying apparatus, a receptacle for the substanceto be applied, an applying roll rotatable in the receptacle, feeding rolls situated at opposite sides of the applying roll and arranged successively to move the work over the applying roll, and a pluralit of spring fingers contacting with the wor opposite the applying roll and between the feeding rolls, each of the fingers having a portion substantially plying roll.

7. In an applying apparatus, an applying member arranged to operate simultaneously upon a plurality of separate objects throughconcentrlc to said apdriven roll co-operating with the feeding rolls in the advance of the work-pieces.

' 9. In an ap lying apparatus, an elongated rotatable app ying roll arranged to operate simultaneousl upon plural pieces of work, a driven fee ing roll extending along the applying roll, and a plurality of independently rotatable rolls arranged in a series along the driven roll.

10. In an applyingapparatus, an elongated rotatable applylng roll arranged tooperate simultaneously upon plural pieces of work, a driven feeding roll extending along the applying roll, and a plurality of pressure-rolls co-operating with the driven roll and being independently yieldable.

11. In an applyin apparatus, an apply- .ing member arrange to operate simultaneously upon a plurality of separate objects throughout its length, and means acting independently upon such separate objects at each side of the applying member to effect their feed.

12. In an applying apparatus, an elongated rotatable applying roll arranged to operate simultaneously upon plural pieces of work, and a plurality of feeding rolls extending in plural series longitudinally of the applying roll and at opposite sides thereof, said opposite feeding rolls being arranged in alined pairs; f

I3. In an applying apparatus, an elongated rotatable applying roll arranged to operate simultaneously upon plural pieces of work, a driven feeding roll extending along the applying roll and being rotatable in a direction opposite thereto, and a plurality of independently rotatable rolls arranged in a series along the driven roll.

14. In an applying apparatus, a receptacle, an applying member operatingin the receptacle and over which the work is advanced, a support extending across the receptacle adjacent to the applying member, and members mounted upon the support for movement independently of one another and for engagement with the work at different points in its advance.

15. In an'applying apparatus, a receptacle, an applying member operating in the receptacle and over which the work is advanced, a support extending across the receptacle adjacent to the applying member, and members movably mounted upon the support for engagement with the work at di erent points in its advance.

16. In an applying apparatus, a receptacle, an applying roll operating. in the receptacle and over which the work is advanced, a support extending across the receptacle adjacent to the applying roll, and pressure-rolls yieldably mounted upon the support and arran ed to engage the work at opposite sides of t e applying roll.

17. In an applying apparatus, a receptacle, an applying roll operating in the re- I ceptacle and over which the work is advanced, a support extending across the receptacle adjacent to the applying roll, pressure-rolls yieldably mounted upon the support and arranged to enga e the work at opposite sides of the applying roll, and pressure-fingers carried by the su port and co-operating with the applying r0 1 between the pressure-rolls.

18. In an applyin apparatus, a tank, an applying roll rotatab e therein, a rod extending across the tank above the applyin roll, arms pivotally mounted u on the ro and terminating at opposite si es of the applying roll, and pressure-rolls mounted upon the arms. 7

19. In an applying apparatus, a tank, an applying roll rotatable therein, a rod extending across the tank above the applyin roll, arms pivotally mounted upon the rod and terminating at opposite sides of the applying roll, springs mounted upon the rod and acting upon the arms, and pressurerolls mounted u on the arms. I

20. In an app ying apparatus, a tank, an applying roll rotatable therein, a rod extending acros the tank above the-applying roll, series of arms pivotally mounted upon the rod and terminating at opposite sides of the applying roll, and a series of ressurerolls carried by the arms at each side of the applying roll.

21. In an applying apparatus, a tank, an applying roll rotatable therein, a rod extending across the tank above the applyin roll, arms. pivotally mounted upon the ro applying roll, pressure-rolls mounted upon the arms, arms fixed to the rod between the pivoted arms, and spring-fingers secured to the fixe arms and co-operating with the applying roll.

22. In an applying apparatus, a tank, an applying roll rotatable therein, a rodextendlng across the tank above the applyin roll, blocks fixedupon the rod, arms pivoted upon the rod adjacent to the blocks,- arms pivoted upon the blocks, springs interposed between the blocks and both sets of arms, and pressure-rolls rotatable upon the arms.

23. In an applying apparatus, a tank, an applying roll rotatable therein, a rod extendm across the tank above the applying roll, bl cks fixed upon the rod, arms pivoted upon the rod adjacent to the blocks, arms pivoted upon the blocks, springs interposed between the blocks and both sets of arms, means carried by the arms and arranged to vary the tension of the springs, and pressurerolls rotatable upon the arms.

24. In an applying apparatus, an applyin roll having retaining depressions for the substance to be applied, adjacent depressions circumferentially of the roll bein arranged between different transverse p anes, and means arranged to cause the substance in the de ressions to be rubbed over the surface of the work.

25. In an applying apparatus, an applying roll having helically arranged depressions for retaining the substance to' be applied,

and means arranged to cause the substance in the depressions to be rubbed in a continuous coating over the'surface of the work.

26. In an applying apparatus, an applying roll having about its peri hery a helical rib longitudinal ribs connecting convolutions oi the helical ribs, and means arranged to cause the ribs to roughen the surface of the work.

'JoHN w. COSGROVE. 

